/*
 * Copyright (C) 2008 by Xume.
 * 
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 * 
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 */
package org.xume.critann.jpa.criteria.criterion;

import org.xume.critann.jpa.criteria.QueryContext;

/**
 * $Id: InCriterion.java 25 2008-10-13 21:37:55Z johan.siebens $
 * 
 * @author Johan Siebens
 */
public class InCriterion implements Criterion {

	private String propertyName;

	private Object[] values;

	public InCriterion(String propertyName, Object[] values) {
		this.propertyName = propertyName;
		this.values = values;
	}

	public String toQueryFragment(QueryContext context) {
		if (values.length == 0) {
			return "";
		}

		StringBuilder fragment = new StringBuilder(context.getEntityAlias() + '.' + propertyName + " in (");
		for (int i = 0; i < values.length; i++) {
			if (i != 0) {
				fragment.append(", ");
			}
			fragment.append(':' + context.generateParameterName(values[i]));
		}
		fragment.append(')');

		return fragment.toString();
	}

}
